Analysis of vibration for permanent magnet motors considering mechanical and magnetic coupling effects

Author

Kim, Tae-Jong ; Hwang, Sang-Moon ; Park, No-Gill

Author_Institution

Sch. of Mech. Eng., Pusan Nat. Univ., South Korea

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1346

Lastpage

1350

Abstract

Vibration of a rotor-bearing system driven by an electric motor is a coupled phenomena between mechanical characteristics and magnetic origins through the airgap. With the advent of new high energy magnetic material together with high precision motor applications, magnetic sources of vibration are becoming more serious. This paper investigates the transient whirl responses of a rotor system with purely mechanical origins and compares it with that of magnetically coupled origins. The results show that magnetically coupled sources significantly affect the vibration of the rotor-motor system

Keywords

finite element analysis; machine theory; magnetic forces; permanent magnet motors; rotors; vibrations; air gap; finite element transfer matrix; high energy magnetic material; magnetic coupling; magnetic forces; mechanical characteristics; permanent magnet motor; rotor-bearing system; transient whirl response; vibration analysis; Couplings; Equations; Magnetic analysis; Magnetic forces; Magnetic separation; Permanent magnet motors; Rotors; Stators; Transient analysis; Vibrations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877688

Filename

877688